Perceived efficacy | Comparison | Ties | Positive ranks | Negative ranks | Effect size | Z | Pa | ||
---|---|---|---|---|---|---|---|---|---|
n | Sum of ranks | n | Sum of ranks | ||||||
Decreases risk of death from an opioid overdose | MET vs NTX | 88 | 24 | 2796 | 48 | 6168 | − 0.25 | − 3.16 | 0.002 |
BUP vs NTX | 112 | 28 | 3634.5 | 9 | 1212.5 | 0.25 | 3.03 | 0.003 | |
BUP vs MET | 110 | 56 | 7987 | 7 | 959 | 0.47 | 6.20 | < 0.001 | |
Decreases cravings for opioids | MET vs NTX | 103 | 36 | 4813 | 23 | 3034 | 0.14 | 1.73 | 0.088 |
BUP vs NTX | 104 | 40 | 5052.5 | 5 | 662.5 | 0.42 | 5.14 | < 0.001 | |
BUP vs MET | 135 | 34 | 5231 | 3 | 467 | 0.39 | 5.08 | < 0.001 | |
Decreases rates of relapse | MET vs NTX | 98 | 27 | 3370.5 | 36 | 4819.5 | − 0.11 | − 1.40 | 0.156 |
BUP vs NTX | 103 | 30 | 3699 | 12 | 1530 | 0.22 | 2.68 | 0.008 | |
BUP vs MET | 107 | 51 | 7031.5 | 10 | 1386.5 | 0.40 | 5.21 | < 0.001 | |
Works well in clients with co- occurring mental health disorders | MET vs NTX | 92 | 27 | 3307.5 | 41 | 5294.5 | − 0.15 | − 1.90 | 0.058 |
BUP vs NTX | 101 | 34 | 4164.5 | 11 | 1415.5 | 0.27 | 3.30 | 0.001 | |
BUP vs MET | 108 | 53 | 7349 | 7 | 961 | 0.46 | 5.93 | < 0.001 | |
Should be supplemented by mental health counseling | MET vs NTX | 135 | 19 | 2831 | 8 | 1192 | 0.17 | 2.12 | 0.052 |
BUP vs NTX | 116 | 17 | 2167.5 | 7 | 916.5 | 0.17 | 1.99 | 0.064 | |
BUP vs MET | 144 | 13 | 1989 | 6 | 937 | 0.12 | 1.57 | 0.167 | |
Should be supplemented by participation in peer support groups | MET vs NTX | 132 | 20 | 2955 | 10 | 1470 | 0.14 | 1.84 | 0.080 |
BUP vs NTX | 120 | 19 | 2530.5 | 7 | 940.5 | 0.19 | 2.34 | 0.028 | |
BUP vs MET | 149 | 13 | 2067 | 7 | 1123 | 0.10 | 1.32 | 0.263 | |
Efficacy is improved by adding mental health counseling | MET vs NTX | 135 | 19 | 2805 | 5 | 735 | 0.23 | 2.86 | 0.006 |
BUP vs NTX | 125 | 19 | 2584 | 4 | 567 | 0.25 | 3.07 | 0.003 | |
BUP vs MET | 150 | 13 | 2077 | 7 | 1133 | 0.10 | 1.32 | 0.259 | |
Appropriate for unstable patients | MET vs NTX | 72 | 26 | 3069 | 63 | 7344 | − 0.30 | − 3.81 | < 0.001 |
BUP vs NTX | 69 | 32 | 3382 | 41 | 4356 | − 0.09 | − 1.06 | 0.300 | |
BUP vs MET | 97 | 46 | 6071 | 20 | 2542 | 0.26 | 3.31 | 0.001 | |
Often diverted or misused | MET vs NTX | 55 | 95 | 10,136 | 7 | 727 | 0.68 | 8.51 | < 0.001 |
BUP vs NTX | 61 | 78 | 8677.5 | 17 | 1677.5 | 0.52 | 6.44 | < 0.001 | |
BUP vs MET | 82 | 34 | 4328 | 66 | 8922 | − 0.25 | − 3.42 | 0.001 |